: I just purchased a neo-angle shower kit; the base appears to rest quite solidly when on a level floor. : Is it neccesary to lay down a bed of mortar prior to installing the base? Also, is it best to lay down the base on top of finished flooring or on an unfinished floor? This is to be installed in a basement bath, and I am having a plumber do the DWV system; once the rough-in is complete, I will cover with concrete and install the shower myself...

I was told it somewhat was determined by the base itself, ie a grid support or raised areas, mine had raised areas, so I carefully placed small piles of mortar in the unsupported areas...it feels solid as a rock, I was told its cheap insurance against future flexing and or cracking...